塔河油田超深超稠油井套管找堵漏实践及认识

Knowledge and practice of leakage casing and tube plugging in Tahe ultra-deep and super-heavy oil oilfield

延俊宝 丁磊 杨耀辉

Yan Junbao Ding lei Yang Yaohui

中国石油化工股份有限公司 西北油田分公司 塔河采油二厂,新疆 轮台 841604

Tahe No. 2 Oil Production Plant, SINOPEC Northwest Oilfield Company, Luntai, Xingjiang 841604, China

随着塔河油田开发时间的延长，油井套管漏失现象逐年增加。受井深、油稠、高温、高矿化度、高硫化氢腐蚀、井内管串结构、掺稀开采方式影响，常规找漏方法难以适应塔河油田超深超稠油井找堵漏需求。通过分析历年14口井找堵漏实施效果，总结出针对超深超稠油井的4种套管找漏方法的适应条件，2种套管堵漏的方法的优缺点，对10口井实施套管堵漏11井次，累计增油5.86×104 t。

During the development of the Tahe Oilfield, well casing leaks more and more seriously year by year. Restricted by well depth, heavy oil, high temperature, high salinity, high hydrogen sulfide corrosion, well bundle structure and light oil injection, the conventional methods of leakage casing fail to meet the demand of the Tahe Oilfield which is featured by ultra-deep and super-heavy oil. The practices of leakage casing and tube plugging in 14 wells are analyzed, summarizing the corresponding conditions for 4 methods of leakage casing and tube plugging in ultra-deep and super-heavy oil wells. The advantage and disadvantage of 2 methods are discussed. Applications of leakage casing and tube plugging are made for 11 times in 10 wells, adding up oil by 5.86×104 t.

https://doi.org/10.11781/sysydz2013S1108